The Pick-Up Ball Mower -CourtServe Mower -is made from a non-rust molded plastic that is incredibly strong and durable. It will not scrape up the court surface either because of its non-marking wheels and casters. Simply roll over the tennis balls for a scrape-free, smooth pick-up of hundreds of tennis balls. And it will alleviate back strain due to the fact you no longer have to bend down to pick up all those tennis balls all over the court. The Pick-Up CourtServe Mower comes in a choice of "Tennis Court" green or "Sports Tutor" black.